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emissions tuning

  1. e46 m3 performance exhaust that meets Idaho's Emissions.

    Driveline, Engine & DME Tuning
    I'm looking to buy an exhaust from headers back, I'm worried about meeting the requirements for emissions though. I live in Idaho. I want as much horsepower for the price as I can get as well. I'd prefer a titanium one but I don't have my heart set yet. I like deep sounds without it sounding...
  2. Vendors Please Help - Emissions Status of Current Kits

    Forced Induction Forum
    Vendors - here's what I want to accomplish with this thread - there are people on here who are interested in determining what kits they can use and still pass OBDII-based emissions testing. For example, I'm in NY, and I don't "know a guy" so any upgrades would have to be compatible...